We express our appreciation to the Cities of Toronto, New York, and Chicago and the State of Minnesota, whose guidelines and standards provided a basis for these. Thanks also to the following people for their work to make the built environment safer for the winged animals who enrich our world, and with whom we share our City: This document is based in part on guidelines published by: New York City Audubon Society, Inc., May 2007; the Audubon Minnesota, May 2010; and an unpublished draft of the National Guidelines by the American Bird Conservancy. In addition, material was drawn from many sources; every effort was made to cite those sources and any omissions are inadvertent.NYC Audubon Bird-Safe Building Guidelines Credits: Project Director: Kate Orff, RLA, Columbia University GSAPP ; Authors: Hillary Brown, AIA, Steven Caputo, New Civic Works; Project Staff: E.J. McAdams, Marcia Fowle, Glenn Phillips, Chelsea Dewitt, and Yigal Gelb.Audubon MN Bird-Safe Building Guidelines Credits: Project Director: Joanna Eckles, Audubon Minnesota. Contributor: Edward Heinen, Edward Heinen Architectural Consulting.
Adopted July 14, 2011
By the San Francisco Planning CommissionPhoto by Glenn Nevill 1
Birds and GlassBirds and Lighting
Other Causes of Collisions
Implications for San FranciscoLessons from Major CitiesMicro-Location vs. Macro-Location
II. BIRD-SAFE TREATmENTS 18
Survey of Effective Treatments: Old and Innovative
Glass and Façade Treatments Wind GeneratorsLighting Treatments
III. BIRD-SAFE REqUIREmENTS AND gUIDElINES ACROSS AmERICA 26
IV. SAN FRANCISCO BIRD-SAFE BUIlDINg REqUIREmENTS 27 V. RECOmmENDED ACTIONS AND BIRD-SAFE STEwARDSHIP 33Public Pigeons and sparrows are readily visible in San Francisco. These ubiquitous city birds are not shy about sharing our urban spaces. But the casual observer may be shocked to learn that our City's birds are much more diverse. There are about 400 species of birds in San Francisco; remarkably, this is nearly half the species in all North America (Kay 2009). For those who look, the shyer species are just around the corner. This is due in part to the diverse habitats of the Bay Area and its position on the coastal migration path, the Pacific Flyway. Some birds are well-adapted to urban life, and they may remain here as year-round "residents." Others are migratory, passing through the City southward in autumn en route to their winter feeding grounds, then returning northward in spring to establish territories in summer breeding grounds.There are special problems posed for birds living in or flying through cities. Over 30 years of research has documented that buildings and windows are the top killer of wild birds in North America (Banks 1979;Ogden 1996;Hager et al. 2008;Klem 2009;Gelb and Delacretaz 2009). Structure collision fatalities may account for between 100 million and 1 billion birds killed annually in North America (United States Fish and Wildlife Service 2002;Klem 2009). According to the leading expert, Dr. Daniel Klem Jr., this toll strikes indiscriminately culling some of ...